yeh pillows or highchair is ok - but he prefers if we just keep his hips square or a couple of fingers lightly under his arms or in his fists so he has nothing behind his back (if we lean him back on us he gets cranky - must be sitting up tall and straight my boy LOL) - we also have the added element of DS#1 so Samuel doesn't really get to do anything in peace - if he's awake and alert Benjamin wants to help him and play with him (and really doesn't understand the strength/balance ratios)